/Engine/Plugins/Online/OnlineSubsystemSteam/Source/Public/OnlineAuthInterfaceUtilsSteam.h
This delegate dictates the success or failure of an authentication result. This means we got a result, but we won't be taking action yet.
typedef TMulticastDelegate_TwoParams< void, const class [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) &, bool > FOnSteamAuthResult